Steam-generator



(No Model.) 2 sheets sheet 1.

W. SNEE, STEAM GENERATOR.

No. 423,827. Patented Mar. 18, 1890.

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(N0 Mm. 2 Sheets-Sheet 2. W SNEE. STEAM GENERATOR.

No. 423,827. Patented Mar. 18, 1890.

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IVILLIAH SNEE, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO JOHN A. SNEE, CHARLES TAZE RUSSELL, W'IL- LIAM GUCKERT, AND JAMES H. CANFIELD, ALL OF SAME PLACE, AND JACOB P. NILL, OF BICKEESPORT, PENNSYLVANIA.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 423,827,-dat'ed March 18, 1890.

Application filed September 14, 1889. Serial No. 323,916. (No model.)

;" (tZZ whom it may concern.-

Be it known that I, W'ILLIAM SNEE, a citizen of the United States, and a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Steam-Generators; and I do hereby declare that the following is a full, clear, and exact descriptionof the invention, which will enable others skilled to in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a longitudinal vertical sectional view on 'a plane through the middle of my improved steam generator as applied to a locomotive. Fig. 2 is a horizontal sectional View on the plane indicated by the line 50 58, Fig. 1. Fig. 3 is a longitudinal vertical sectional view of myimprovement as applied to portable engines, and Fig. 4 is a similar view showing the device applied to marine boilers. Like letters of reference refer to like parts throughout the several views. a My invention has relation to steanrgenerators; and it has for its object to provide a device which shall possess not only superior advantages in point of safety and absence of danger, but, furthermore, a generator possess- 0 ing superior advantages from an economic point of View, causing a great saving in the consumption of fuel and at the same time providing a construction which shall be of a most simple character and readily accessible for the purpose'of cleaning, (to.

\Vith these objects in view my invention consists in the improved construction and combination of parts of the steam-generator, which will be hereinafter more fully described 4 and claimed.

Reference being had to the accompanying drawings,the letter A represents the fire-box,

' of any desired construction and adapted for any kind of fuel, such as coal, crude petroleum, natural gas, (K50. This fire-boxis located within a boiler 13, so as to be surrounded by water on all sides, excepting the bottom, said boiler terminating at its front end in an oblong compartment C. This compartment is intersected transversely at regular intervals by a series of combustion-chambers D, said chambers consisting of two opposing sections with flat sides and annular rims or peripheries, the latter having each an inwardly-extending flange (1, whose edges meet closely and form a tight joint, and also forming ameans for conveniently riveting or otherwise suitably securing the chambers to the casing of the boiler. By thus constructing the combustion-chambers of two sections they may 6c be readily dismantled for the purpose of obtaining access thereto, if for any reason the same should be found desirable.

The combustion-chamber nearest the firebox is connected to the same by a series of fines E, which serve the purpose of conveying the products of combustion into the first chamber, and after circulating thoroughly therein they are conveyed to the second chamber by a like series of fines E, and so on until the last chamber is reached, from which they are conveyed directly into the smokeboX F, from which the smoke is carried off through the smoke-stack G. The spaces between these combustion -chambers form a series of heating-chambers or auxiliary boilers H, through which the fines previously described pass and connect one combustionchamber with the other. These heaters or heating-compartm ents aresupplied with water by a series of alternately-arranged curved feed-water pipes I, said pipes being preferably constructed of two parts connected by a central joint, the ends thereof being suitably riveted to the casing. The feed-Water pipe nearest the fire-box communicates directly with the boiler B and conveys a portion of the water contained therein to the first heating-compartment. After supplying this compartment with the requisite amount of water the latter is then conveyed to the second heating-compartment by means of a similar feedwater pipe extending from the opposite side of the casing of the generator, and from the latter it is likewise conveyed to the next compartment by an alternately-arranged pipe, and so on until all the chambers are thus supplied, as will appear more particularly by reference to Fig. 2. Any excess of water may be drawn oiif from these chambers by means of cocks J, depending from the bottom thereof, which also serve to remove sediment or scale that may collect in the bottom of the respective chambers. The steam generated within these combustion-chambers is taken off by means of upright pipes K, which connect with a horizontal pipe L, leading into the boiler above the water-line thereof. The steam on entering this space com mingles with the steam generated from the boiler and then ascends into the dome M for utilization.

Figs. and t of the drawings illustrate clearly my invention as applied to a portable engine and marine engine, respectively, from which it will be seen that the construction and combination of parts does not differ materially from that illustrated in Figs. 1 and 2 and is not a departure in any sense from the broad principle of my invent-ion.

By the arrangement herein shown and described by me it is obvious that the heatingcompartments will absorb a great quantity of the heat before the products of combustion escape into the smoke-chamber at the end of the series. In order, however, to further increase the cfliciency of the device in this re spect, the length of the casing may be increased, and the number of: the combustionchambers likewise increased, thus providing for the absorption of practically all the heat before the products of combustion are finally discharged into the smoke-chamber. It will also be seen that by providing the casing with at series of opposite alternately-arranged curved feed-water pipes a most convenient means is afforded for supplying the several heating -compartments with water without danger of any leakage arising between the latter and the combustion-chainbers, which apt to be the case where the supplypipes pass directly through said combustion-chambers.

The great advantage claimed by me, however, is in point of economy, as experience has demonstrated that a saving of one-half on coal or fuel is effected. Vith ninety-four pounds of coal one thousand four hundred and eighty pounds of water have been evaporateda gain of ten and a halt pounds over the old methods.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. In a steam-genorator, the combination, with a casing, of a fire-box located therein, a series of transverse combustion-chambers, flues connecting the fire-box with said combustion-chambers and with one another, aseries of feed-water pipes arranged alternately upon opposite sides of the casing for supplying water from the boiler to the spaces intermediate the combustioil-chambers, and suitable pipes for conveying the steam to the dome, substantially as set forth.

2. In a steam-generator, the combination, with a casing, of a fire-box located therein, a series of transverse combustion-chambers, said chambers consisting of two parts having flat sides and annular rims or peripheries,the latter provided with inwardly-extendingmeeting flanges, fines connecting the fire-box with said combustion-chambers and with one another, a series of feed-water pipes arranged alternately upon opposite sides of the casing for supplying water from the boiler to the spaces intermediate the combustion-chambers, and suitable pipes for conveying steam to the dome, substantially as described.

In a steanrgenerator, the combination of a boiler terminating in a forward reduced portion, a fire-box located within the rear of said boiler, transverse coinbustioirchambers consisting of two parts having flat sides and annular rims or peripheries, the latter provided with inwardly extending meeting flanges, fines connecting the combustion" chambers with the fire-box and with one another, heating compartments or auxiliary boilers intermediate said combustion-chambers, and curved feed-water pipes for transferring the water from the boiler proper to the heating-compartments, said pipes consisting of two sections having their ends secured to the casin g of the generator and provided with a central joint, said pipes being arranged alternately upon opposite sides of the casing, and

steam-pipes for conveying the steam from theheating-compartments to the boiler proper, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

WILLIAM SNEE.

\Vitnesses:

Louis Bxeonn, .IAcon GLossER.

IOO 

